﻿using System;

class Program
{
    static void Main()
    {
        int a = int.Parse(Console.ReadLine());
        int b = int.Parse(Console.ReadLine());
        int c = int.Parse(Console.ReadLine());
        double d = (b * b) - (4 * a * c);
        double x1, x2;
        if (d <= 0)
        {
            if (d < 0)
            {
                Console.WriteLine("no real roots");
            }
            else
            {
                x1 = (-b) / (2 * a);
                Console.WriteLine(x1);
            }
        }
        else
        {
            x1 = ((-b) + Math.Sqrt(d)) / (2 * a);
            x2 = ((-b) - Math.Sqrt(d)) / (2 * a);
            Console.WriteLine(x1);
            Console.WriteLine(x2);
        }
    }
}